Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter R - Algebra Reference - R.4 Equations - R.4 Exercises - Page R-16: 2


$\displaystyle \frac{3}{4}$

Work Step by Step

The aim is, step by step, to isolate x on one side of the equation. Add 3x to both sides and the right side will have no x's Subtract 2 from both sides and the left side will contain only x's. $5x+2=8-3x\qquad ... /+3x-2$ $ 5x+3x=8-2\qquad$... simplify $8x=6\qquad $divide both sides by 8 to isolate x $ 8x=6\qquad$ .../$\div$8 $x=\displaystyle \frac{6}{8}=\frac{3}{4}$ Solution: $\displaystyle \frac{3}{4}$
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